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Correlational findings

Study Kohler et al. (2005): study DK 2002

Public:
20-70 aged identical twins, Denmark, 2002
Sample:
Respondents:
N = 3226
Non Response:
26%
Assessment:
Questionnaire: paper

Correlate

Authors's label
Age group
Our Classification
Operationalization
1 Age 25-45
2 Age 50-70

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-SLu-u-sq-v-4-g DM = + ALL
- age 25-45   M = 1.45    SD = 0.59
- age 50-70   M = 1.48    SD = 0.56
difference      + 0.03

MALES
- age 25-45   M = 1.46    SD = 0.59
- age 50-70   M = 1.51    SD = 0.55
difference      + 0.05

FEMALES
- age 25-45   M = 1.45    SD = 0.59
- age 50-70   M = 1.49    SD = 0.57
difference      + 0.04

4-step lifesatisfaction reduced to 3-step by combining scores 1+2

Means and differences are calculated by WDH team